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moxingyuece3
高速铁路路基沉降是一个复杂的系统过程,涉及不同时期、不同工况,选用单一的预测模型不足以反映路基整体的变形规律.Logistic模型及Verhulst模型的曲线均为S形,可以反映全过程的地基沉降与时间的关系.针对路基填筑期和降水期两个时段利用MATLAB软件编制程序计算模型参数,得到Logistic模型和灰色Verhulst模型,进而求得两者的最优加权组合模型.对比结果表明:在路基填筑期由两者的最优加权组合模型预测得到的结果与实测结果较吻合,拟合精度高于单一模型 而在降水期Verhulst模型的预测值更接近实测值,平均相对误差约为1.75%,拟合精度较高.(High-speed railway subgrade settlement process is a complex system involving different times and in different conditions, the choice of a single forecasting model does not adequately reflect the overall deformation of roadbed. Curve Logistic model and Verhulst models are S-shaped, the whole process can be reflected foundation settlement versus time. against roadbed construction period of two hours and precipitation using MATLAB software programming model parameters, the Logistic model and gray Verhulst model, and then get the optimal model of a weighted combination of the two. comparative results indicate : results and experimental results in the roadbed construction period by the weighted combination of the best of both models predicted than the anastomosis fitting accuracy than a single model precipitation predicted value of Verhulst model closer to the actual value of the average relative error approximately 1.75 fitting accuracy.)
- 2014-01-10 17:30:42下载
- 积分:1
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FCM_KFCM
fcm kfcm segmentation
- 2009-10-10 22:17:16下载
- 积分:1
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srchybrid45b_VeryCD
电骡0.45b源码.rar (-- Mule 0.45b source. Rar-- Mule 0.45b source. Rar)
- 2007-01-21 13:07:10下载
- 积分:1
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dilation-code
Applying dilation to binary map
- 2013-03-29 10:33:46下载
- 积分:1
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matlab-1
仿真不同占空比,等概、非等概双极性矩形随机信号的归一化功率谱密度,分析不同信号所包含的频谱分量,有无直流分量和定时分量信息
(Simulation different duty cycles, etc. There is, and so there was a non-random signal bipolar rectangular normalized power spectral density analysis of the spectral components of different signal contained, with or without DC component and timing component information)
- 2013-12-10 00:25:40下载
- 积分:1
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side_lobe_level
pulse compression in RADAR for back scattering and Araay implementation
- 2014-01-03 02:01:09下载
- 积分:1
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Matlab
不错的matlab电子书,不错的matlab电子书,(Matlab good books, good books matlab,)
- 2010-12-24 00:01:06下载
- 积分:1
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source-code-smadav
isual Basic is a high level programming language that can be used to develop useful business software, stimulating educational programs,cutting-edge engineering applications, amusing games, entertaining multimedia programs and many other practical applications. Some of the VB sample codes created by us are calculator, Library System, Stop Watch and more.
- 2014-10-01 18:19:49下载
- 积分:1
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color-lbp
运用matlab,实现矢量版局部二值模式人脸识别,实现效果好(Use matlab, realize the vector version of local binary pattern recognition, to achieve good results)
- 2013-12-09 15:52:42下载
- 积分:1
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buck_PI
MATLAB/Simulink仿真模型。
buck_DC/DC变换器仿真模型,控制策略为PI控制。
实用,可行。(Based on matlab/simulink.
Buck DC/DC converter.
Practical and feasible.)
- 2020-07-04 11:00:01下载
- 积分:1